Do the COVID Vaccines Cause ‘Viral Shedding’ and Disrupt Menstrual Cycles or Cause Miscarriages?

Widely shared social media posts claim that the Pfizer vaccine causes viral shedding that leads to a disruption of menstrual cycles and possible miscarriages. One viral Instagram video, in particular, includes the following caption: “Pfizer document confirms ‘Covid Vaccine Shedding’ leading to ‘Menstrual Cycle Disruption’ and ‘Miscarriage’ is possible via ‘skin-to-skin contact’ and ‘breathing the same air’.”

The video claims that “the vaccinated seem to be shedding something terrible to the unvaccinated.” The video also says that Pfizer “was concerned about shedding” in its vaccine trials, “by inhalation or skin contact.”

These are false claims. The Pfizer vaccine does not cause viral shedding and does not lead to “menstrual disruption” and “miscarriages.”